This chapter interrogates the nature and function of weapons in Latino gang culture, and is divided into three parts. It begins by defining Latino gangs in the Americas, and classifying them into Mexican-American gangs, Mexican gangs, and Central American gangs. Despite differences in region, economic situation, generations and cultural characteristics, I draw broad similarities by focusing specifically on large, organized gangs within each of the three classifications. The second section interrogates the logics and motivations driving gangs' use of weapons, along with the psychological and instrumental functions of weapons use for Latino gangs. The chapter's third section is a substantial conclusion which argues for approaches to gang-violence which derive from the field of peace and conflict studies, including short-term approaches to violence reduction (gang ceasefires and truces) and longer term, ecological approaches based on the theoretical framework of community resilience.